Why stock watchface can show seconds all the time and custom watchfaces can't? And it shows alarm sign.
I mean ConnectIQ watchfaces shouldn't be limited comparing to stock watchface. What a discrimination =)
I'll let you in on a little secret: The default watch face does not run on the main processor, but instead runs on a much lower power micro which doesn't have enough memory to run Connect IQ. It honestly doesn't have enough memory to hold the screen buffer; I work with some mad/crazy embedded hackers here at Garmin. All that for a second hand.
We face similar challenges to other smart watches when it comes to balancing functionality and power usage. I think all smart watches have been figuring out how to offer the customize-ability of custom watch faces without killing the battery for the use cases the devices is intended before. We're starting with a conservative approach, but it could evolve over time.
-Alpha Monkey
So you're wanting to do real-time stock trading on a fitness device? First off, watch faces don't have access to the communications module, so you couldn't get the stock data to display on a watch face anyway. If you had a watch face that was pulling stock data and updating the display every second, you'd eat through your battery pretty quickly.